.dae
COLLADA modelCollaborative Design Activity
An XML 3D interchange format created by Sony Computer Entertainment and now maintained by the Khronos Group. It holds geometry, materials, effects, skeletons and animation.
Exchanging models with older engines, SketchUp and Google Earth.
Opens in SketchUp, Maya, Cinema 4D, Quick Look on Mac
About DAE files.gltf
glTF modelGL Transmission Format
An open 3D format from the Khronos Group, first released in 2015. A JSON file describes the scene and points to separate binary buffers and texture images.
Exchanging real-time 3D scenes with materials and animation between tools and engines.
Opens in Blender, three.js, Godot, Unity and Unreal (with plug-ins)
About GLTF files